205056149488 has 20 divisors (see below), whose sum is σ = 399292759600. Its totient is φ = 102012856704.

The previous prime is 205056149453. The next prime is 205056149491. The reversal of 205056149488 is 884941650502.

It is a super-3 number, since 3×205056149488³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32197845 + ... + 32204212.

It is an arithmetic number, because the mean of its divisors is an integer number (19964637980).

Almost surely, 2^205056149488 is an apocalyptic number.

It is an amenable number.

205056149488 is a deficient number, since it is larger than the sum of its proper divisors (194236610112).

205056149488 is a wasteful number, since it uses less digits than its factorization.

205056149488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64402264 (or 64402258 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 205056149488 in words is "two hundred five billion, fifty-six million, one hundred forty-nine thousand, four hundred eighty-eight".